add postmessage to communicate information back to hosting site
pseudozach opened this issue · comments
as per heylayer, they need a way to get the user's txId minted via lnswap.
this could work: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage
this feature is available and documented on: https://docs.lnswap.org/widget-quick-start
